Title:
Seal ring
Document Type and Number:
Japanese Patent JP6298834
Kind Code:
B2
Abstract:
Provided is a sealing device capable of suppressing leakage of a fluid to be sealed while reducing rotary torque regardless of rotational direction. In a sealing ring (100) slides against a side wall surface on a low pressure side of an annular groove, a dynamic pressure generating groove (120) that includes a first groove (121) having a constant width in a radial direction and extending in a circumferential direction and a second groove (122) extending from a center position of the first groove (121) in the circumferential direction to an inner circumferential surface and guiding a fluid to be sealed into the first groove (121) is provided on a sliding surface side which slides against the side wall surface. The first groove (121) is provided at a position within a sliding region in which the sealing ring slides against the side wall surface.
More Like This:
Inventors:
Mari Seki
Takeshi Hosoe
Hideyuki Inoue
Yuichiro Tokunaga
Takeshi Hosoe
Hideyuki Inoue
Yuichiro Tokunaga
Application Number:
JP2015559134A
Publication Date:
March 20, 2018
Filing Date:
January 23, 2015
Export Citation:
Assignee:
NOK CORPORATION
Eagle Industry Co., Ltd.
Eagle Industry Co., Ltd.
International Classes:
F16J15/18
Domestic Patent References:
| JP3088062U | ||||
| JP63190975A |
Foreign References:
| WO2011105513A1 |
Attorney, Agent or Firm:
Takeshi Nakamura
Kazunobu Sera
Yoshiyuki Kawaguchi
Hiroyasu Kanai
Koichiro Sakai
Kazunobu Sera
Yoshiyuki Kawaguchi
Hiroyasu Kanai
Koichiro Sakai